Episode 1

Chiyomi Horikiri (Ai Iinuma), who lives on the coast of Shonan, is currently challenging for the last basketball prefectural tournament qualifier of her high school career.Under the watchful eyes of mother Kaede (Kimura Yoshino), grandmother Yuriko (Kaga Mariko), unrelated father Shintaro (Takeda Shinji), and younger brother Takuma (Banke Tensong), Chiyomi, who has been a substitute for thousands of years, finally made her appearance.By chance, at this time, Chiyomi's childhood sweetheart, favorite person, and basketball star Minami Hiroyuki (Yuzaki Yagi) came to the gym to cheer her on.It's a pity that the game was lost, leaving a trace of regret.At this time, Nanjun comforted and encouraged Chiyomi...Chiyomi was somewhat uneasy about Anan, who was perfect at all times.

Soon, Nanjun's college basketball team will hold a game.Chiyomi said she was going to cheer for Nanjun, and they had an agreement after the game.

Then the day of the game came. Chiyomi came to the gym very early and saw Anan talking cordially with basketball coach Misuzu Sagawa (Reina Takeda).Chiyomi felt that she did not have the mature temperament of Misuzu, and she also felt alienated during the competition.

With mixed feelings, Chiyomi went to the meeting place with Nanjun as agreed, but for some reason, after waiting for a long time, Nanjun did not show up...?